Machine for grinding bottle-stoppers.



L. J. OREOELIUS.

MACHINE FOB. GRINDING BOTTLE STOPPERS.

APPLICATION FILED MAY 1, 1911.

Patented Apr. 16, 1912.

2 SHEETS-SHEET l.

ATT'Ys COLUMBIA PLANOGRAPH con-WASHINGTON. n. c.

L. J. GREGELIUS.

MACHINE FOR GRINDING BOTTLE STOPPERS.

I APPLIOATION FILED MAY 1, 1911. 1,Q23, 1 3 1 Patented Apr. 16, 1912.

2 BHEBTSSHEET 2.

- Xnvenbor: AUBGSB I..J.Cmac \ius w I ATT'YSW 8.2;. Y MW UNITED STATESPATENT OFFICE.

LOUIS J. CRECELIUS, OF ST. LOUIS, MISSOURI, ASSIGNOR TO CHARLES A.THOMPSON, OF ST. LOUIS, MISSOURI.

MACHINE FOR GRINDING BOTTLE-STOPPERS.

Specification of Letters Patent.

Application filed May 1, 1911.

Patented Apr. 16, 1912.

Serial No. 624,292.

T 0 all whom it may concern:

Be it known that I, LOUIS J. CRnoEmUs, a citizen of the United States ofAmerica, residing in the city of St. Louis and State of Missouri, haveinvented certain new and useful Improvements in Machines for GrindingBottle-Stoppers, of which thefollowing is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification.

My invention relates to a machine for grinding bottle stoppers and hasfor its object the production of means whereby such stoppers may be veryquickly and accurately ground.

Figure I is a side elevation, partly 1n section, of my stopper grindingmachine. Fig. II is a section taken approximately on the line IIII, Fig.I. Fig. III is a section on line IIIIII, Fig. I. Fig. IV is a top orplan view of a portion 0 a stopper ear rier, the stopper carried therebybeing shown in cross section.

In the accompanying drawings: A and A designate grinding devices, eachof which comprises the following parts: 1, 1 are hollow shafts rotatablymounted in bearings 2, 2, and provided with drive pulleys 3, 3. 4, 4:are set collars secured to the shafts 1, 1, and resting on the lowerbearings 2, 2. Grinding blocks 5, 5 are seated in the lower ends of theshaft-s 1, 1 and secured thereto by set screws 6, 6. Each of thegrinding blocks is provided with a socket for the reception of thestoppers.

B designates a flexible stopper carrier, preferably in the form of anendless link belt supported by a drive wheel 7 and an idle wheel 8. Thedrive wheel 7 is secured to a shaft 9, mounted in bearings 10.

11 is a ratchet wheel, secured to the shaft 9, and adapted to be driventhrough the medium of a pawl 12, said pawl being pivoted to a.bell-crank lever 13, loosely mounted on the shaft 9. A foot lever 14,pivoted at 15, is connected to the bell-crank lever 13 V by a link 16.

17 is a lift spring tending to elevate the foot lever and normallyholding said lever against a stop 18.

To prevent the stoppers from turning while they are acted on by therotating grinding device, the links 19 of the stopper carrier areprovided with non-circular apertures for the reception of thenon-circular stems or tails of stoppers C. The stoppers are delivered tothe links 19 through a vertical tube 20 and fall by gravity into theapertures in the links ready to be carried into positions beneath thegrinding devices A and A. The stopper carrier B is sup ported and guidedbeneath the grinding devices by a flanged guide 21, (see Figs. I andII).

22 and 22 designate lift arms pivotally sup-ported at 23 and extendingbeneath the guide 21 and in vertical alinement respectively with thegrinding devices A and A. These lift arms are provided at their upperfaces with recessed seats, as seen at 24'. adapted to receive the tailsof the stoppers C when they are in positions beneath the grindingdevices.

25 designates funnels located above the hollow shafts of the grindingdevices and into which liquid, such as water, may be delivered frompipes 26 to pass therefrom through the shafts to the grinding blocks 5and 5.

In the practical use of my grinding machine, the stoppers to be groundfall automatically from the tube 20 into the links of the carrier B andare first conducted in lowered positions in the links to a point beneaththe grinding device A. It should be noted while the machine is inoperation, the grinding devices are rotated by power applied to them. Aseach stopper is brought by the operation of the carrier beneath thegrinding device A, it is elevated through the medium of the lift arm 22to position its head in the revolving grinding block 5 and maintained insuch elevated position until such head has been ground to the desireddegree by said block, which is coarser than the block 5 and grinds thehead in the rough. The grinding block 5 of the grinding device A is afinishing block and the stoppers are conducted forwardly to be operatedupon by said finishing block after they have been ground by the block.5. When the stopper has been treated to the desired degree by thegrinding block 5, the lift arm 22 is lowered, thereby permitting thedescent of the stopper, and the stopper carrier is operated to a degreesufiicient to carry the stopper to a point beneath the grinding deviceA, at which point it is elevated to the grinding block 5 to be groundthereby in a manner similar to that in which it is ground in the block5; but, as before indicated, producing a finish to the stopper by reasonof the grinding action ac complished by the second grinding block. Afterthe stoppers have been ground, they pass in the carrier over the idleWheel 8 and fall by gravity out of the links in their finishedcondition.

I claim 1. In a stopper grinding machine, a rotatable grinding devicehaving a socket for the reception of the stoppers, a carrier forconducting the stoppers to said grinding device, means for forcing thestoppers into said socket, and means for preventing the stoppers fromrotating While they are acted on by the rotatable grinding device.

2. In a stopper grinding machine, a rotatable grinding device providedWith a grinding block having a socket for the reception of the stoppers,a stopper carrier adapted to be moved intermittently to conduct thestoppers to a point below said socket and means for elevating thestopper on sald carrier to force them into said socket.

3. In a stopper grinding machine, a r0- tatable grinding device providedWith a" grinding block having a socket for the reception of thestoppers, a stopper carrier adapted to be moved intermittently toconduct the stoppers to a point below said socket, means for elevatingthe stoppers on said carrier to force them into said socket; and saidstopper carrier being provided- With means for preventing the stoppersfrom rotating While they are engaged with said rotatable grindingdevice.

4. In a stopper grinding machine, a rotatable grinding device providedWith a holloW shaft and a grinding block fitted to the lower end of saidshaft, said grinding block having a socket for the reception of thestoppers, means for conducting liquid to the interior of said hollowshaft, a stopper car rier for conveying stoppers to said grinding block,and means for forcing the stoppers into said socket.

5. A stopper grinding device comprising a flexible endless stoppercarrier provided With non-circular stopper receiving openings, rotatablesupports for said carrier, a grinding device above the carrier, andmeans for moving the stoppers into engagement With the grinding device.

LOUIS J. CRECELIUS.

In the presence of A. J. MoCAULEY, E. B. LINN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington,' D. G.

